This product is durable, safe, will make a good assistant for you to protect yourself from physical hurts. iron equipped, durable, strong, reliable, anti-rust, corrosion resistant, marvelously valuable for heavy yoga lifting and other sports equipmen t. Features -Color: Grey -Material: Iron -Size: About 12.00X12.00X9.00cm/ 4.72X4.72X3.54inch -Made of good quality and selected iron material, the hook is durable and sturdy. -Easy to install design make it more practical and easy to use. It also can be used for a long time. -Screw fix make you can the swing chair tightly and easily. You can use it without worry. -Perfect hooks for all swing set products indoors or outdoors including gymnastics rings ceiling mounts, porch swings and yoga hammock swings. -Good choice for training project. Super load-bearing dancing ring, swing, fixed buckle.